Discussions

i don't see anything wrong in that code. try

• can you look at you images to see if you have got any repeated images.
• see in the world class that you nothing resetting the int called frames.

i will edit this when i think of more answers :p beware make sure you compress your images as it will not upload onto greenfoot

Yes. "getOneIntersectingObject" finds an actor whose bounds intersect this actor's bounds; "getOneObjectAtOffset" finds an actor which intersects (covers) the point at offset 0, 0 from this actor's location.

For a scrolling world there are many scenarios, you can take a look at. I would recommend this: http://www.greenfoot.org/scenarios/3040 For gravity there are although many examples in this gallery.

If you have Greenfoot 2.2.0 or later, you can use the 'UserData' class. It has all the basics in what you are looking for.

Thanks guys I will probably put it in the constructor of the new world. That would be easy as most things are based in my world anyways and there are only a few variables.

Thank you very much, you saved me from a bad note in school! I had to get passed this to be able to move on to the next part, so it really helped me out :) Also I learned from your explaination! Thanks :)

I want to set the location of the mouse at a startpoint. I already tried with: <Code Omitted>But this just setts the location on the computer screen... the method getStartPoint() returns an Object that is a subclass of Actor

forget it. used in the wrong method

oh those were just examples. lol but thx. :)

YES!!! thx guys got it to work.

I noticed that, but I assumed crazyjack12 might have made an array so that he would have more choices or something. But yes that is much simpler.

See here for an example of accessing a URL and printing the output: http://docs.oracle.com/javase/tutorial/networking/urls/readingURL.html Note though that this code won't work on the gallery. A better alternative might be to use Greenfoot's built in support for such things... :-)

I assume there is multiple nuke explosions simultaneously and it is not set statically, it will just use a lot of heap space. Since you are using the garbage collector, you can tell java to tell java to try to release memory but there is no guarantee that it will do so. If I were you I would declare it as a static variable then all your explosions will use one set of images instead of multiple sets. (See the book example for asteroids). The nice thing about doing this is that the initialization routine is only done once and the data is not duplicated. It would go something like pri